Both men toted guns and both wore dark masks and gloves as they rounded up the grocery store's seven late-night employees just before 11 p.m. Friday, after the Warwick Boulevard business had closed.

No one was injured, according to Newport News Police spokeswoman Lynn James.

The suspects approached the workers from the back of the store, and it is unclear how or when they entered the building, James said. There are no signs that the two broke in, she said.

The men herded the employees into a back storage room and handcuffed them, then robbed the store and fled. There are no suspects in the case, and employees were not able to give descriptions, James said.

"They had masks and gloves on, they were covered up, so we don't have anything," she said.

An overnight stock clerk called police when, on arriving at the store shortly after the robbery, he found he was locked out of the building, James said.

A manager on duty at the Food Lion Saturday afternoon referred all media inquiries to the chain's Salisbury, N.C., corporate headquarters. Calls to the headquarters were not answered Saturday.